:root{--bg:#0d1117;--panel:#111827;--text:#e5e7eb;--muted:#9ca3af;--accent:#f59e0b;--accent-2:#10b981;--danger:#ef4444}*{box-sizing:border-box}body{margin:0;font-family:Space Grotesk,Sora,IBM Plex Sans,system-ui,-apple-system,sans-serif;background:radial-gradient(1200px 600px at 20% -10%,#1f2937 0,#0d1117 55%),radial-gradient(800px 400px at 90% 10%,#111827 0,#0d1117 60%);color:var(--text);min-height:100vh}a{color:inherit;text-decoration:none}.container{max-width:960px;margin:0 auto;padding:40px 20px}.card{background:linear-gradient(160deg,#0f172a,#0b1220 60%);border:1px solid #1f2937;border-radius:16px;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.35)}.button{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:12px;border:1px solid #374151;background:#111827;color:var(--text);font-weight:600;cursor:pointer}.button.primary{background:linear-gradient(140deg,#f59e0b,#f97316);border:none;color:#0b0f14}.input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #374151;background:#0b1220;color:var(--text)}.muted{color:var(--muted)}.chat-window{height:420px;overflow-y:auto;padding:16px;border-radius:14px;background:#0b1220;border:1px solid #1f2937}.message{margin-bottom:12px;padding:12px 14px;border-radius:12px;max-width:75%;line-height:1.4}.message.user{margin-left:auto;background:#1f2937;border:1px solid #374151}.message.bot{background:#0f172a;border:1px solid #1f2937}.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:#111827;border:1px solid #1f2937;font-size:12px;color:var(--muted)}